SP18-307
on

Date

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Release

Page

11.2018

11.2020

1

17(31)

the

Lubricate the inner of the new sliding
ring with fresh compressor oil.

FIGURE 32: COMPRESSOR SHAFT PIN AND SHOULDER

-

Push the sliding on the compressor
shaft up to the shaft shoulder (figure
32).

-

Make sure that the shaft pin engages
in one of the sliding ring recesses
(figure 33).

-

Secure the sliding ring to the shaft with
the two set screws (figure 34). Thread
locker is pre-applied to the set screw
threads.

FIGURE 33: SLIDING RING RECESSES

TORQUE: 18 lb-in (2.5 Nm)
Push the sliding ring toward the shaft shoulder
while tightening the set screws.

FIGURE 34: INSTALLING NEW SLIDING RING

Writer: mg

Special Bulletin

SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

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18(31)

10. Install the new stationary ring in the sealing
cover (figure 35).
-

Lubricate the stationary ring and ORing with fresh compressor oil.

-

Push the stationary ring in the sealing
cover making sure that the O-Ring
groove is pointing toward the inside of
the sealing cover.

FIGURE 35: STATIONARY RING INSTALLATION IN SEALING
COVER

11. Reinstall the compressor front sealing
cover.
-

Lubricate the thickest O-Ring in the kit
with fresh compressor oil (# 9).

-

Install the thick O-Ring on the backside
(compressor mounting surface) of the
sealing cover (figure 36).

-

Also put some compressor oil to the
sealing tip of the sliding ring (figure 37).

-

Slide the sealing cover in position.

-

Put medium strength (blue) thread
locker on the screw threads and secure
the cover to the compressor by
uniformly (cross pattern) tightening the
mounting screws (figure 38).

FIGURE 36: O-RING INSTALLATION

FIGURE 37: SLIDING RING AREA TO BE LUBED

TORQUE: 18.5 lb-ft (25 Nm)

Writer: mg

Special Bulletin

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SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

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19(31)

Apply a stripe of tamper proof indicator
paint (Torque Seal) to all screw heads.

IMPORTANT: The sealing cover oil
hole must be at the 1 O’clock
position (figure 39).

FIGURE 38: INSTALLED FRONT SEALING COVER

FIGURE 39: SEALING COVER OIL HOLE POSITION

12. Install a new O-Ring on the sealing cover
front face (figure 40).
-

Slightly lubricate the O-Ring (# 11) with
compressor oil.

-

Install the O-Ring in the sealing cover
groove.

FIGURE 40: O-RING LOCATION ON SEALING COVER

Writer: mg

Special Bulletin

SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

1

20(31)

13. Install a similar O-Ring inside the oil
chamber (figure 41).
-

Slightly lubricate the O-Ring (# 11) with
compressor oil.

-

Install the O-Ring at the bottom of the
oil chamber.

FIGURE 41: O-RING LOCATION INSIDE OIL CHAMBER

14. Reinstall the oil chamber an overflow tube.
-

Slide the oil chamber in position over
the sealing cover. Make sure that both
O-Rings are properly engaged (figure
42).

-

Secure the oil chamber using the 3
new supplied M5 screws (# 14). Put
medium strength (blue) thread locker
on the screw threads.

TORQUE: 35 lb-in (4 Nm)
-

Apply a stripe of tamper proof indicator
paint (Torque Seal) to the screw
heads.

-

Reinstall the overflow tube at the
bottom of the oil chamber. Secure to
the tube to the compressor bracket
(figure 43).

-

Rotate the compressor shaft several
times by hand to ensure correct
installation.

Writer: mg

FIGURE 42: OIL CHAMBER INSTALLATION

FIGURE 43: INSTALLED OIL CHAMBER & OVERFLOW TUBE

Special Bulletin

SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

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PART 4
AC CLUTCH INSTALLATION
1. Make sure that the compressor shaft and

the coil mounting flange are clean (free
from grease or dirt) (figure 44).
-

Apply a thin coat of high temperature
approved assembly grease on the shaft
end for easy dismounting of the clutch.

FIGURE 44: CLEANED AREA

Use of Molykote G-rapid-plus or Molykote
P 40 is recommended by the manufacturer

2. Reinstall the coil (figure 45).

-

Slip the coil on the compressor flange

-

Position the coil connector at 5 o’clock
(lower right position).

FIGURE 45: CONNECTOR LOCATION

Writer: mg

Special Bulletin

SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

1

22(31)

3. Fasten the coil to the compressor using the

four M8 mounting screws (figure 46).
-

Put medium strength (blue) thread
locker on the screw threads.

-

Hand tight the screws.

-

Apply final torque in a cross pattern.
FIGURE 46: INSTALLED COIL

Coil mounting screws: 22 lb-ft (30 n-m).
-

Apply a stripe of tamper proof indicator
paint (Torque Seal) to all screw heads.

CAUTION: Pay attention to the precise seating
of the coil. Improper seating may cause
damage to the clutch components during
operation.

Writer: mg

Special Bulletin

SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

1

23(31)

4. Reconnect the coil (5 o’clock position

connector) (figure 47).

FIGURE 47: CONNECTED COIL

5. Install the clutch on the compressor shaft

(figure 48).
-

Make sure that the woodruff key is
correctly positioned on the shaft;
otherwise it could move when inserting
the clutch (see image below).

FIGURE 48: INSTALLING THE CLUTCH

-

Carefully slide the clutch on the shaft,
making sure of the correct engagement
of the woodruff key

Do not use a hammer or hit the clutch body
to install the clutch. Press with both hands
until the clutch “bottoms out” on the shaft.

Writer: mg

Special Bulletin

SP18-307
Date

Expiration

Release

Page

11.2018

11.2020

1

24(31)

6. Fasten the clutch to the compressor shaft

using the M12 bolt (figure 49).
TORQUE: 60 lb-ft (81 Nm)
-

Use a large adjustable wrench to hold
the hexagonal part of the clutch rotor
while tightening (figure 50).

-

Apply medium strength (blue) thread
locker on the screw threads.

FIGURE 49: INSTALLED CLUTCH

-